Yyk525 User Manual Exclusive May 2026

Press and hold the Function (FN) button while connecting the power. The OLED screen will flash a firmware version (e.g., v2.4.1 ). The exclusive Pro feature requires version 2.4 or higher.

The YYK525 is more than a regulator; it is a diagnostic tool, a data logger, and a precision instrument. By understanding its hidden menus, calibration rituals, and error codes, you will extend its lifespan and unlock its true potential. yyk525 user manual exclusive

A: Some units are shipped in "Locked" mode for legal compliance. The exclusive code is: Rotate the dial: Right, Right, Left, Press, Left, Right. The lock icon will disappear. Press and hold the Function (FN) button while